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January 24, 2010 | History

Symptom responses in studies of controlled human exposures to concentrated ambient fine particles and/or ozone 1 edition

Symptom responses in studies of controlled human exposures to concentr ...
Shehrina Tabassum

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Symptom responses in studies of controlled human exposures to concentrated ambient fine particles and/or ozone .

Published 2006 .
Written in English.

About the Book

There is a paucity of symptom data reported in controlled human exposure studies. This study examined symptom responses and subjective evaluation of perceived pollution through self and researcher-administered questionnaires in 10 asthmatics and 10 non-asthmatics, exposed for 2-hours to filtered air, low (∼66mug/m3) and high (∼136mug/m3) CAP with/without O 3 (120ppb). Symptom and exposure severity responses were not significantly different between asthmatics and non-asthmatics. However, when respiratory symptoms were grouped together in a cluster, a trend emerged with asthmatics reporting more symptoms than non-asthmatics. Analysis of variance and tests for marginal homogeneity showed mostly non-significant differences for symptoms or severity rating for CAP, O3 and their interaction effects. Participants reported more symptoms for the researcher- versus self-administered questionnaire. Those who perceived exposure to pollutant(s) tended to report more symptoms and higher exposure severity. This data suggests a relationship between subjective perception of pollutant(s) exposure and symptom reporting that merits further study.

Edition Notes

Source: Masters Abstracts International, Volume: 44-06, page: 2784.

Thesis (M.Sc.)--University of Toronto, 2006.

Electronic version licensed for access by U. of T. users.

ROBARTS MICROTEXT copy on microfiche.

The Physical Object

Pagination
149 leaves.
Number of pages
149

ID Numbers

Open Library
OL19215889M
ISBN 13
9780494163788

History Created December 11, 2009 · 2 revisions Download catalog record: RDF / JSON

January 24, 2010 Edited by WorkBot add more information to works
December 11, 2009 Created by WorkBot add works page